81407313

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^2\times {\mathrm{101}}^1$

素因数の和:286

約数の個数: 36

約数和(自身を含む): 129446772

約数和(自身を除く): 48039459

約数列:

[1, 3, 9, 13, 39, 83, 101, 117, 249, 303, 747, 909, 1079, 1313, 3237, 3939, 6889, 8383, 9711, 11817, 20667, 25149, 62001, 75447, 89557, 108979, 268671, 326937, 695789, 806013, 980811, 2087367, 6262101, 9045257, 27135771, 81407313]

約数ペア:

[(1, 81407313), (3, 27135771), (9, 9045257), (13, 6262101), (39, 2087367), (83, 980811), (101, 806013), (117, 695789), (249, 326937), (303, 268671), (747, 108979), (909, 89557), (1079, 75447), (1313, 62001), (3237, 25149), (3939, 20667), (6889, 11817), (8383, 9711)]